To cite package ‘chemometrics’ in publications use:

Filzmoser P (2023). chemometrics: Multivariate Statistical Analysis in Chemometrics. R package version 1.4.4, https://CRAN.R-project.org/package=chemometrics.

Corresponding BibTeX entry:

  @Manual{,
    title = {chemometrics: Multivariate Statistical Analysis in
      Chemometrics},
    author = {Peter Filzmoser},
    year = {2023},
    note = {R package version 1.4.4},
    url = {https://CRAN.R-project.org/package=chemometrics},
  }